Heater with door mounted burner



J y 4, 1950 A. H. HOOPS 2,513,871

HEATER WITH DOOR MOUNTED BURNER Filed Dec. 26, 1944 3 Sheets-Sheet l Jj' cZ.

27 m; 38 I! 3/ 33 7 l.

July 4, 1950 A. H. HOOPS 2,513,371

HEATER WITH DOOR MOUNTED BURNER Filed Dec. 26, 1944 3 Sheets-Sheet 2 alli d/{100,05

Sam/M430 July 4, 1950 Filed Dec. 26, 1944 A. H. HOOPS HEATER WITH DOOR MOUNTED BURNER 3 Sheets-Sheet 3 Patented July 4, 1950 UNITED STATES PATENT OFFICE 2,513,871 HEATER Wi'rH DOOR MOUNTED BURNER Albert H. Hoops, Savannah, Ga. Application December 26, 1944 serial No. 569,841

The invention relates to heaters and has as an object the provision of a heater utilizing a pot burner having improved features.

It is a further object to provide a burner of this character mounted for ready accessibility.

It is a further object to provide a pot burner having improved means for delivery of fuel thereinto.

It is a further object to provide a pot burner having air admission openings which, due to their shape and location, improve the operation of the burner.

It is a further object to provide a heater applicable to the heating of domestic water or to a circulatory space heater.

Further objects will appear from the following description when read in connection with the accompanying drawings showing illustrative embodiments of the invention and, wherein:

Figure 1 is an elevation partly in section.

Figure 2 is an elevation showing the burner swung to accessible position.

Figure 3 is a detail vertical section on line 3--3 of Figure. 1.

Figure 4 is a detail vertical section through one of the openings in the flame generating portion of the burner.

Figure 5 is a plan view shown partly in section of the device closed for operation and showing in dotted lines the burner swung to accessible position.

Figures 6 and 7 are views similar to Figure 5 showing other forms of the invention.

Figure 8 is a front view of a circulatory space heater shown partially in central vertical section and with parts'broken away to show interior structure in section.

Figure 9 is a plan view partially in section of the structure of Figure 8.

As shown in Figures 1 and 2, the device is applied to a water heater comprising a closed casing l0 containing a water coil II in accordance with the usual practice. As there shown the pot burner of the invention is shown mounted upon a door l3 hinged at M to the casing It]. Struts I5, shown as four in number, are utilized to support the burner on the door in the form shown.

The pot burner is shown as comprising, in accordance with the usual practice, a combustion chamber I6 and a flame initiating chamber ll? divided by means of a cast iron annular ring l8 supported upon lugs l9. An additional cast iron ring is indicated at 20 lying upon the upper opening of the burner as is usual.

1 Claim. (01. Bil-93) The burner is shown as made in two parts 2| and 22 formed respectively with marginal flanges 23, 2 4 which overlap and may be secured together as by use of screws 25. The pots 2|, 22 are preferably formed ofheavy sheet material, as for instance of 16 gauge steel. The chamber I6 is formed with a multiplicity of air openings 26 andthe chamber ll with air openings .21. The form of the openings 2'! is an important feature of' the present invention. This form is clearly indicated in Figure 4 of the drawing which shows an 7 opening essentially downwardly sloping. This form ma be secured by the drilling of the holes and then by the deformation of the walls of the holes in the form shown in Figure 4 which may be produced by an impact properly applied to the upper and lower margins of the openings or it maybe produced by the insertion of a rigid instrument that fits the hole and using thesaid instrument as a lever to deform the upper and lower portion of the opening at a single move ment, of the lever. v

The result of this form of openings in combination with the forced draft to be described, which produces a superatmospheric pressure in the space 28 between the pots 2|, 22 is that the jets of air entering the chamber I6 are down- Wardly directed upon the oil lying therein, there by very greatly improving combustion.

To provide the forced draft referred to there is shown a blower 29 also mounted on the door of thedevice in the form of Figures 15 inclusive with its nozzle projecting through the door to a position in alignment with and spaced h from thecollar 3t surrounding an opening 3| in the pot 2|. To adjust the supply of air in the space 28 in accordance with the speed of the fan and of the requirements of combustion there is shown a sleeve 32 loosely carried by the nozzle 33 of the blower, which sleeve may be slid away from the collar 30 so as to allow any desired percentage of the-air from the blower to escape into the casing outside of the pot 2|. The blast of air from the blower 29 would produce a cold spot upon the pct 22, to avoid which a shield 34 is shown as applied to the wall of the pot 22 as clearly shown in Figures 3 and 5.

The device, when used as a domestic water heater, is ordinarily placed in a basement, the floor of which is likely to be dust or otherwise unclean and to avoid the picking up of dust, lint, etc. from the floor to be drawn into the intake of the blower 252, a stack 35 is shown which extends to a height above the floor where the air is likely to be more free of dust.

To admit fuel to the burner there is shown a fuel supply line 36 secured to the casing as at 31, in connection with a flexible fuel pipe 38 leading to a fitting 39 which may be rigid. The fitting 39 delivers to an X 40 from which extends a pipe 4| leading directly into the inner pot 22 and from the cross 40 also extend lines 42, 43 delivering respectively to pipes 44, 45 providing additional inlets'for fuel intoithe pot'22.; As-shown' the inlets are '3 in numberspaced uniformlyaabout the pot. If desired, 2 inlets or more than 3 may be utilized, the object being to deliver oil at spacedf. 1

points to the inner pot so that .oil..may,.bei.uni-,.

formly distributed thereabout without having'to' 1 flow to the Various positions while exposed totheacombustion. This provision avoids to a,great., ex-.

tent deposits of carbon which would result "from the form of fuel delivery now common. The rflex ible conduit 35 is provided to permit the portion.39.to move with .the burner. as the..door, I3

is opened-and closedawithout .interference with the flow offuel .and: asa consequence. theacombustion in. the burner. may be adjusted-if .desired. while the burner .is swunginto theopenand-is. therefore availablefor: inspection andiadjuste ment. 7

In the form of the invention showninFigureG (thefuel line-notshown, maybe of theform already illustrated) the blowerris shown..as...placed at onesideof the device and .isnot. .mounted upon.

thefdoor l3.-- To permit movement of the .burner,

a flexible air delivery, pipe. v46 is shown...as., pro? vided when the burners-is -.located.=as .here shown.

Theufuel line in this form.of.the-inven.tion,-notj.

shownpmay. be of theform. of Figuresl 110.5. a

In the form of ltheiinvention of Figure)? the.- blower 29 is locatedata pointremovedir'om the hinge of the doorand .thecollan lljon emotion. The blower. is. shownin .a position to swing to register therewithewheiqathe with the nozzle 331-.

door is closed. The fuel delivery in thedeviceof Figure 7 may be-the'sameas that=shown in .Fig-

ure: It-is of. courseobvious thatthe flexible..- conduit-38, Figure 5, couldbe. insidethecasing... ill-after the mannerofl the. flexible airintake 46-. of Figure G-but the rpreferredz position is .as. shown in. Figure 5 whereby the flexible pipeisnotsube.

jected to theeheatz of, the burner.

The circulatory heater; of.-Fig ure 18 embodies upper end to prevent large .objeots from ital-ling in upon the heated-top of. the drumifl. The

air therefore of1aroom in which. the device is,

4 placed is free to circulate from below, around the heated drum 41', and out at the top thereof.

As indicated in Figure 8 the interior of the drum 4'! above the burner is partially divided by a baffle 50 which deflects the air and products of combustion from the burner over against one side of the drum from which it rises to the top of the drum and then flows downwardly to the flue 48' therebyassisting .in .heat transfer. The drum .49.is,.as shown provided with a large door 5| hinged as at 52 which may be opened to secure accessibility to the smaller door [3 and to the blower 29 carried by the latter door. Opening' of 'thelarge door enables the swinging open of the door to bring the burner into the open in the manner already described in connection with the-hot water heater.

Minorchanges may be made in the physical embodiments of the invention within the scope of. the appended .claim .without departing from the spiritiof 'the invention.

I claim:

A heater comprising; incombination a heat exchange. casing provided with a door; a pot burner mounted on said door for swinging outwardly'and inwardly'relative to thecasing; said burner having-an air admission-opening surroundedby an outwardlydirected collar; a blowenmounted 'onsaid door independently of'said burner, with .a nozzle the periphery of which is substantially aligned with and spaced from the freeedge ofsaidcollar; and adjustable means to' vary theopening of .said, space between thecollar and nozzle.

ALBERT HOOPS.

REFERENCES CITED The-following referencesare of record in the.

file of this patent:

UNITED; STATES: PATENTS.

Number Name Date 1,780,219 Barrett NOV. 4, 1930 1,837,763 De Lanoey Dec: 22, 1931 2,014,507 Price Sept. 1'71 1935 2,179,041 Hoifman Nov. '7, 1939 2,186,803 Goerg Jan: 9,1940 2,214,670 Gilmore et al Sept. 10, 1940 2,247;859J Purtell' July 1, 1941 2255276 Breese Sept. 9, 1941 2,302,291 Breese Nov. 17, 1942 2,304,707 Pollock Dec. 8; 1942 2,342,272..v Hayter Feb. 22, 1944 2,355,896. Wyld Aug. 15, 1944. 2,393,176 Livar et a1. Jan. 15, 1946 FOREIGN PATENTS Number Country Date 319,409. Italy July 9, 1934 520:815 Great Britain May 3, -1940 617,000 France June 2, 1926 

